package com.liyiqing.secondhandmall.thirdpartyservice.controller;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.common.utils.BinaryUtil;
import com.aliyun.oss.model.MatchMode;
import com.aliyun.oss.model.PolicyConditions;
import com.liyiqing.commonservice.utils.R;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedHashMap;
import java.util.Map;

@RestController
@RequestMapping("thirdParty/oss")
public class OssController {

    @Resource
    private OSS oss;

    //  获取配置文件中的值
    @Value("${spring.cloud.alicloud.access-key}")
    private String accessId;
    @Value("${spring.cloud.alicloud.oss.endpoint}")
    private String endpoint;
    @Value("${spring.cloud.alicloud.oss.bucket}")
    private String bucket;
    

    @RequestMapping("/policy")
    public R policy(){
        System.out.println("调用thirdParty/oss/policy");

//        String accessId = "LTAI5tHJ8rZpNaxwW88ZdEk4"; // 请填写您的AccessKeyId。
//        String accessKey = "WLKMw5OQKJhNhzxRVbczrSx9BSfxIw"; // 请填写您的AccessKeySecret。
//        String endpoint = "oss-cn-beijing.aliyuncs.com"; // 请填写您的 endpoint。
//        String bucket = "secondhand-mall"; // 请填写您的 bucketname 。

        String host = "https://" + bucket + "." + endpoint; // host的格式为 bucketname.endpoint

        // callbackUrl为上传回调服务器的URL，请将下面的IP和Port配置为您自己的真实信息。
//        String callbackUrl = "http://88.88.88.88:8888";

        String format = new SimpleDateFormat("yyyy-MM-dd").format(new Date());//创建一个格式化的当前时间
        String dir = format+"/"; // 用户上传文件时指定的前缀。

        Map<String, String> respMap = null;//结果集
        try {
            long expireTime = 30;
            long expireEndTime = System.currentTimeMillis() + expireTime * 1000;
            Date expiration = new Date(expireEndTime);
            // PostObject请求最大可支持的文件大小为5 GB，即CONTENT_LENGTH_RANGE为5*1024*1024*1024。
            PolicyConditions policyConds = new PolicyConditions();
            policyConds.addConditionItem(PolicyConditions.COND_CONTENT_LENGTH_RANGE, 0, 1048576000);
            policyConds.addConditionItem(MatchMode.StartWith, PolicyConditions.COND_KEY, dir);

            String postPolicy = oss.generatePostPolicy(expiration, policyConds);
            byte[] binaryData = postPolicy.getBytes("utf-8");
            String encodedPolicy = BinaryUtil.toBase64String(binaryData);
            String postSignature = oss.calculatePostSignature(postPolicy);

            respMap = new LinkedHashMap<String, String>();
            respMap.put("accessid", accessId);
            respMap.put("policy", encodedPolicy);
            respMap.put("signature", postSignature);
            respMap.put("dir", dir);
            respMap.put("host", host);
            respMap.put("expire", String.valueOf(expireEndTime / 1000));
            // respMap.put("expire", formatISO8601Date(expiration));

        } catch (Exception e) {
            // Assert.fail(e.getMessage());
            System.out.println(e.getMessage());
        } finally {
            oss.shutdown();
        }

        return R.ok().put("data",respMap);

    }
}
